SharpSolaris said:I agree. But can we verify or "measure" the gravity of the past?
For example - what say about this observation of space objects? After all, we see space objects as they were in the past.
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Can we see the gravitational constant, a binary pulsar or binary star?
g=Fr2/(m1 m2)?
The theory is that a catastrophic event, such as a large asteroid impact, caused the Earth's gravity to increase significantly, leading to the crushing of the dinosaurs.
Gravity plays a crucial role in determining the size and weight of animals. The stronger the gravitational pull, the more pressure it exerts on an organism's body, causing it to be smaller and more compact.
While there is no direct evidence, there are several pieces of indirect evidence, such as the discovery of fossils with compressed bones and the presence of iridium, a rare element found in asteroids, in the geological record of the extinction event.
It is highly unlikely for the Earth's gravity to increase to the extent that it would cause the crushing of animals like dinosaurs. Even if a similar catastrophic event were to occur, organisms have evolved to adapt to different levels of gravity.
The theory sheds light on the role of gravity in shaping the evolution of life on Earth and the potential impact of catastrophic events on the planet's environment. It also helps us understand the significance of gravity in determining the size and weight of organisms.